属颈外动脉的分支()在皮肤表面可扪及的动脉()上下颌骨的血供来源()
A.面动脉
B.上颌动脉
C.两者均有
D.两者均无
参考答案:C,A,B
Your sister is standing between ______. [ ]
A. he and I
B. him and me
C. he and me
D. I and he
主动脉瓣关闭不全时可有以下哪项周围血管征
A.交替脉B.水冲脉C.重搏脉D.无脉E.奇脉